Prove it by finding the word "theophany" used by any OT writer when referring to Yehova. Also can a "theophany" eat?
Genesis 18:1-8
18:1 Now the LORD appeared to him by the oaks of Mamre, while he was sitting at the tent door in the heat of the day. 2 And when he lifted up his eyes and looked, behold, three men were standing opposite him; and when he saw them, he ran from the tent door to meet them, and bowed himself to the earth, 3 and said, "My lord, if now I have found favor in your sight, please do not pass your servant by. 4 Please let a little water be brought and wash your feet, and rest yourselves under the tree; 5 and I will bring a piece of bread, that you may refresh yourselves; after that you may go on, since you have visited your servant. "And they said," So do, as you have said." 6 So Abraham hurried into the tent to Sarah, and said, "Quickly, prepare three measures of fine flour, knead it, and make bread cakes." 7 Abraham also ran to the herd, and took a tender and choice calf, and gave it to the servant; and he hurried to prepare it. 8 And he took curds and milk and the calf which he had prepared, and placed it before them; and he was standing by them under the tree as they ate.
NAS